System 75 XE to R8si (Blowback)
Task List: System 75 XE to R8si
SI Installation and Upgrades
233
June 2004
Save translations to tape [75 XE upgrade]
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As a safety precaution, create a backout tape:
1
Log into the DEFINITY switch.
2
Type
save translation
and press Enter.
NOTE:
If the system uses the TN750C announcement circuit pack (which has onboard,
nonvolatile memory) you do not need to save announcements. Stop here.
3
If the system uses the TN750B or earlier announcement circuit pack, type
display
announcements
and press Enter.
4
If administered recorded announcements are listed, type
list configuration software-version
and
press Enter.
5
Check page 2 of this form to see when the announcements were last saved, and ask the customer
whether any announcements have changed since then.
6
If announcements have changed, type
save announcements
and press Enter.
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Verify power and grounding and check for power transfer stations [75 XE upgrade]
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1
Verify the power and grounding and make any changes, if necessary.
2
Insert an isolator, if necessary.
3
Visually inspect for power transfer panels.
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Modify external alarm connections [75 XE upgrade]
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You modify the external alarm connections if necessary (that is, if they changed with this upgrade).
See the
Auxiliary lead appearances at AUX connector
table for the current pinouts for an external alarm,
and the
Auxiliary lead appearances for System 75, G1, and G3
table for the prior pinouts.
The control carrier AUX connector outputs include:
•
Alarm monitoring for the auxiliary cabinet.
•
Seven -48 VDC power sources for emergency transfer units.
